Custom destination marker

/*
This code example is part of the Mapbox Navigation SDK for iOS demo app,
which you can build and run: https://github.com/mapbox/mapbox-navigation-ios-examples
To learn more about each example in this app, including descriptions and links
to documentation, see our docs: https://docs.mapbox.com/ios/navigation/examples/custom-destination-marker
*/
 
import Foundation
import UIKit
import MapboxCoreNavigation
import MapboxNavigation
import MapboxDirections
import MapboxMaps
 
class CustomDestinationMarkerController: UIViewController {
 
var navigationMapView: NavigationMapView!
var startNavigationButton: UIButton!
var routeResponse: RouteResponse!
 
// MARK: - UIViewController lifecycle methods
 
override func viewDidLoad() {
super.viewDidLoad()
 
setupNavigationMapView()
setupStartNavigationButton()
requestRoute()
}
 
override func viewDidLayoutSubviews() {
super.viewDidLayoutSubviews()
 
startNavigationButton.layer.cornerRadius = startNavigationButton.bounds.midY
startNavigationButton.clipsToBounds = true
startNavigationButton.setNeedsDisplay()
}
 
// MARK: - Setting-up methods
 
func setupNavigationMapView() {
navigationMapView = NavigationMapView(frame: view.bounds)
navigationMapView.autoresizingMask = [.flexibleWidth, .flexibleHeight]
navigationMapView.delegate = self
navigationMapView.userLocationStyle = .puck2D()
 
view.addSubview(navigationMapView)
}
 
func setupStartNavigationButton() {
startNavigationButton = UIButton()
startNavigationButton.setTitle("Start Navigation", for: .normal)
startNavigationButton.translatesAutoresizingMaskIntoConstraints = false
startNavigationButton.backgroundColor = .white
startNavigationButton.setTitleColor(.black, for: .highlighted)
startNavigationButton.setTitleColor(.darkGray, for: .normal)
startNavigationButton.contentEdgeInsets = UIEdgeInsets(top: 10, left: 20, bottom: 10, right: 20)
startNavigationButton.addTarget(self, action: #selector(tappedButton(_:)), for: .touchUpInside)
startNavigationButton.isHidden = true
view.addSubview(startNavigationButton)
 
startNavigationButton.bottomAnchor.constraint(equalTo: view.safeAreaLayoutGuide.bottomAnchor, constant: -20).isActive = true
startNavigationButton.centerXAnchor.constraint(equalTo: view.centerXAnchor).isActive = true
view.setNeedsLayout()
}
 
@objc func tappedButton(_ sender: UIButton) {
let indexedRouteResponse = IndexedRouteResponse(routeResponse: routeResponse, routeIndex: 0)
let navigationService = MapboxNavigationService(indexedRouteResponse: indexedRouteResponse,
customRoutingProvider: NavigationSettings.shared.directions,
credentials: NavigationSettings.shared.directions.credentials,
simulating: simulationIsEnabled ? .always : .onPoorGPS)
let navigationOptions = NavigationOptions(navigationService: navigationService)
let navigationViewController = NavigationViewController(for: indexedRouteResponse,
navigationOptions: navigationOptions)
navigationViewController.modalPresentationStyle = .fullScreen
navigationViewController.delegate = self
 
present(navigationViewController, animated: true)
}
 
func requestRoute() {
let origin = CLLocationCoordinate2DMake(37.77440680146262, -122.43539772352648)
let destination = CLLocationCoordinate2DMake(37.76556957793795, -122.42409811526268)
let navigationRouteOptions = NavigationRouteOptions(coordinates: [origin, destination])
 
navigationMapView.mapView.mapboxMap.setCamera(to: CameraOptions(center: destination, zoom: 13.0))
 
Directions.shared.calculate(navigationRouteOptions) { [weak self] (_, result) in
switch result {
case .failure(let error):
NSLog("Error occured: \(error.localizedDescription).")
case .success(let response):
guard let routes = response.routes,
let currentRoute = routes.first,
let self = self else { return }
 
self.routeResponse = response
self.startNavigationButton?.isHidden = false
 
self.navigationMapView.show(routes)
self.navigationMapView.showWaypoints(on: currentRoute)
}
}
}
}
 
// MARK: - NavigationMapViewDelegate methods
 
extension CustomDestinationMarkerController: NavigationMapViewDelegate {
 
// Delegate method, which is called whenever final destination `PointAnnotation` is added on
// `MapView`.
func navigationMapView(_ navigationMapView: NavigationMapView,
didAdd finalDestinationAnnotation: PointAnnotation,
pointAnnotationManager: PointAnnotationManager) {
var finalDestinationAnnotation = finalDestinationAnnotation
if let image = UIImage(named: "marker") {
finalDestinationAnnotation.image = .init(image: image, name: "marker")
} else {
let image = UIImage(named: "default_marker", in: .mapboxNavigation, compatibleWith: nil)!
finalDestinationAnnotation.image = .init(image: image, name: "marker")
}
 
// `PointAnnotationManager` is used to manage `PointAnnotation`s and is also exposed as
// a property in `NavigationMapView.pointAnnotationManager`. After any modifications to the
// `PointAnnotation` changes must be applied to `PointAnnotationManager.annotations`
// array. To remove all annotations for specific `PointAnnotationManager`, set an empty array.
pointAnnotationManager.annotations = [finalDestinationAnnotation]
}
}
 
// MARK: - NavigationViewControllerDelegate methods
 
extension CustomDestinationMarkerController: NavigationViewControllerDelegate {
 
func navigationViewController(_ navigationViewController: NavigationViewController,
didAdd finalDestinationAnnotation: PointAnnotation,
pointAnnotationManager: PointAnnotationManager) {
var finalDestinationAnnotation = finalDestinationAnnotation
if let image = UIImage(named: "marker") {
finalDestinationAnnotation.image = .init(image: image, name: "marker")
} else {
let image = UIImage(named: "default_marker", in: .mapboxNavigation, compatibleWith: nil)!
finalDestinationAnnotation.image = .init(image: image, name: "marker")
}
 
pointAnnotationManager.annotations = [finalDestinationAnnotation]
}
 
func navigationViewControllerDidDismiss(_ navigationViewController: NavigationViewController, byCanceling canceled: Bool) {
dismiss(animated: true)
}
}